lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Tue, 8 Dec 2020 16:25:41 -0500 From: Connor McAdams <conmanx360@...il.com> To: unlisted-recipients:; (no To-header on input) Cc: conmanx360@...il.com, Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org, linux-kernel@...r.kernel.org Subject: [PATCH 1/5] ALSA: hda/ca0132 - Reset codec upon initialization. Reset the codec upon initialization to clear out anything that may have been setup on a previous boot into Windows, or in case of an improper shutdown. Signed-off-by: Connor McAdams <conmanx360@...il.com> --- sound/pci/hda/patch_ca0132.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c index 4fbec4258f58..05945f021e74 100644 --- a/sound/pci/hda/patch_ca0132.c +++ b/sound/pci/hda/patch_ca0132.c @@ -8642,6 +8642,22 @@ static void ca0132_init_chip(struct hda_codec *codec) mutex_init(&spec->chipio_mutex); + /* + * The Windows driver always does this upon startup, which seems to + * clear out any previous configuration. This should help issues where + * a boot into Windows prior to a boot into Linux breaks things. Also, + * Windows always sends the reset twice. + */ + if (ca0132_use_alt_functions(spec)) { + chipio_set_control_flag(codec, CONTROL_FLAG_IDLE_ENABLE, 0); + chipio_write_no_mutex(codec, 0x18b0a4, 0x000000c2); + + snd_hda_codec_write(codec, codec->core.afg, 0, + AC_VERB_SET_CODEC_RESET, 0); + snd_hda_codec_write(codec, codec->core.afg, 0, + AC_VERB_SET_CODEC_RESET, 0); + } + spec->cur_out_type = SPEAKER_OUT; if (!ca0132_use_alt_functions(spec)) spec->cur_mic_type = DIGITAL_MIC; @@ -9262,11 +9278,6 @@ static void ae5_register_set(struct hda_codec *codec) if (ca0132_quirk(spec) == QUIRK_AE5) ca0113_mmio_command_set(codec, 0x48, 0x07, 0x83); - - chipio_write(codec, 0x18b0a4, 0x000000c2); - - snd_hda_codec_write(codec, 0x01, 0, 0x7ff, 0x00); - snd_hda_codec_write(codec, 0x01, 0, 0x7ff, 0x00); } /* -- 2.25.1
Powered by blists - more mailing lists